Partition AssistantFree, easy-to-use lossless partitioning software

As a pioneer in lossless partitioning, AOMEI Partition Assistant can not only resize partitions losslessly, but also supports quick partitioning, system migration to SSD, system expansion, hard drive cloning, lossless merging and splitting of partitions. These practical disk and partition management operations can easily help you solve problems.

Partition AssistantFree, easy-to-use lossless partitioning software -分区助手

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AOMEI Partition Assistant is a free and easy-to-use partitioning software. As a pioneer in lossless partitioning, it can help you resize partitions, move partitions, copy partitions, quickly partition, merge partitions, split partitions, recover partitions, migrate operating systems, etc. In addition, Partition Assistant not only supports personal systems such as Windows 7/8/10/11, but also supports server systems such as Windows 2012/2016/2019/2022. Whether you are an ordinary home user or an advanced server user, Partition Assistant can provide you with comprehensive, stable and professional disk partition management services.

powerful functions

AOMEI Partition Assistant is a fully functional and stable partition management software that can easily help you solve many problems such as unreasonable disk partitioning, insufficient system space, migrating the system to SSD, changing partition size, etc.View Partitioning Tutorial >>

  • Resize a partitionLossless expansion or reduction of partitions
  • Quick PartitionProvides convenient and fast partitioning operations for installation
  • Merging and splitting partitionsMerge two or more partitions into one partition, split a large partition into multiple small partitions
  • Allocate free spaceReallocate unallocated space on the disk to an existing partition
  • Create, delete and formatBasic partition operations, you can directly create new partitions under any circumstances
  • Copying disks and partitionsClone all the data on a hard drive to another hard drive
  • Erase disk and partitionWipe disk or partition to prevent deleted private data from being recovered
  • Partitions are aligned by sectorsAlign partitions to 4KB, 8KB, etc. sectors to optimize data access speed
  • Primary logical partition conversionConversion between primary partition and logical partition
  • Convert between MBR and GPT disksLossless data conversion between MBR disk and GPT disk
  • Lossless partitioning via command lineYou can use or integrate the command line of the partition assistant to make lossless partitioning more convenient
  • Rebuilding the MBRRewrite the MBR (boot) sector of an MBR disk


Other features

  • To adjust the partition size and position, just drag the slider bar
  • Virtual operation allows you to preview partition changes in real time to avoid misoperation
  • Graphically display the disk and partition mapping
  • Support Windows XP//Vista/Windows 7 and Server 2003/2008 systems and WinPE systems
  • Fully supports Windows 11/10/8/8.1 systems, supports server Windows 2011/2012/2016/2019/2022
  • Supports all 32-bit and 64-bit operating systems
  • Supports FAT, FAT32 and NTFS file systems
  • Supports MBR and GPT disks up to 4TB
  • Supports up to 64 disks in one system
  • Supports all hardware RAID and IDE, SATA, SCSI, SSD, USB, FireWire, U disk and other types of disks
  • Support hard disks with sector sizes of 4096 bytes, 2048 bytes, and 1024 bytes. Support computers with EFI/UEFI boot mode.

分区助手 Other useful features

These features may not be used very often, butmay be useful to you depending on your needs. These features include:

  • Modify the partition label
  • Change the drive letter of a partition
  • Convert partition to NTFS
  • Hide or unhide a partition
  • Mark a partition as active
  • Rebuild the MBR code of the hard disk
  • Bad sector detection of hard disk
  • Initialize the disk to MBR or GPT style
  • Convert between MBR and GPT disks
  • Modify the partition type ID
  • Modify the partition serial number
  • Check partition and file system errors
  • View disk and partition properties
  • Hard disk speed test

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